Disklavier

Hello fellow disklavier users ... I have a 2 year old DGC1M4 PE Mark IV 
Disklavier and it is wonderful. I am using the dislavier radio 
wirelessly hooked up to my home network and use it frequently. 
I just signed up to receive teh 3.0 upgrade from Yamaha and notoced 
that teh graphics capabilities are also being upgraded. I woudl also 
like to try and hook up an external monitor so that we can use the 
graphics capabilities of the Mark IV. Can someone advise me how to do 
this and what the options are to get this accomplished? Do I need to 
buy a cable and a special monitor from Yamaha or can I use some other 
external monitor?
Thanks!